Table 1.
Group Demographics
| Healthy Controls n=41 | Late Life Depression n=24 | |
|---|---|---|
| Age (years) | 67.6±5.3 | 66.2±7.9 |
| Sex (M:F) | 16:25 | 9:15 |
| Educationa (degree years) | 16.2±3.2 | 14.2±2.7 |
| MMSE | 29.2±1.10 | 29.0±1.3 |
| WTAR Predicted FSIQ | 112.2±10.5 | 108.8±10.5 |
| CES-Db | 4.9±4.4 | 31.8±8.9 |
| Framingham Stroke Risk Profile | 10.4±4.3 | 10.1±4.3 |
| HDRS | 1.5±1.6 | 18.6±3.1 |
| Duration of Current Symptoms (mo) | n/a | 23.6±36.6 |
| Total # Depressive Episodes without ‘chronic’ reports (n=17) | n/a | 5.2±6.5 |
| Age of Onset of 1st Episode | n/a | 42.3±20.4 |
a
p<.05,
b
p<.001
NOTE: all entries reflect mean (total score)±standard deviation unless otherwise noted.
M:F=male to female ratio; MMSE=Mini-Mental State Examination; WTAR= Wechsler Test of Adult Reading; FSIQ=full scale intelligence quotient; CES-D=Center for Epidemiologic Studies Depression Scale; HDRS=Hamilton Depression Rating Scale; Duration of Current Symptoms (mo)=the amount of time the participant has met criteria for their current major depressive episode in months; #=number; n/a=not applicable.